The TDA892x Audio Amplifier Module is a Class D Stereo Audio Amplifier based on TDA8920(B)TH TDA8922TH or TDA8950TH series Class D Audio Power Amplifier Integrated Circuit made by NXP (Philips) Company. The default Power IC for this module is TDA8920TH. Other IC's can choose. The output power start at 2x25W for TDA8922TH IC, 2x70W for TDA8920TH IC, 2x90W for TDA8920BTH IC and up to 2x120W for TDA8950TH IC. When the power IC and option capacitors are selected, please take into account the nominal working voltage of the power IC and chose the proper voltage rating for the capacitors accordingly. The amplifier module can be used in Stereo Single Ended Mode or BTL mode without any modifications. This amplifier is a complete solution for middle and above middle power levels, it only requires a power transformer, wires, signal and speaker connectors and housing. The design of this board is in accordance with the manufacturer datasheet and recommendations, as well as the reference designs. Furthermore, some improvements has been made to make the board more compact and suitable to use both in new designs, in which the user will adopt the preferred housing, input stages and power supply, and can be used also as a drop-in replacement for existing audio amplifiers, which already have housing, transformer, and input stage. The size of the PCB is 58x68mm. Heatsink size is 58x30x70mm. The overall height depends on the height of the capacitors, the overall height with the smallest capacitors is about 60mm and the overall height with the tallest capacitors can reach 80mm, thus the module shall be installed in horizontal position. The heatsink has 4 threaded M3 mounting holes, 2 on each end for convenient installation.